A bookstore in East Harlem collects donations for victims of the neighborhood explosion; a new study finds that most Americans use libraries regularly; writers wonder whether happiness has a place in poetry and fiction; and other news.

Literature-craving commuters in New York City can now enjoy their own version of a program first launched in the London Underground six months ago—a free book exchange. Choose What You Read NY, a volunteer-run nonprofit, has begun setting up camp near major subway stations on the first Tuesday of each month to collect and redistribute donated books.